ISI Inspection Report 2026: Standards Met Across All Areas
We are proud to share the outcomes of our latest ISI inspection, which recognised the strength of Charterhouse Square School’s education, culture and community.
The inspection highlighted our welcoming and purposeful environment, where pupils are known as individuals and supported to develop confidence, independence and resilience. Inspectors also recognised the breadth of our curriculum, the strong relationships between pupils and staff, and the many opportunities pupils have to take responsibility, think creatively and contribute positively to school life.
This inspection was conducted under the ISI framework introduced in 2023, which assesses schools across five key areas:
- Leadership, management and governance
- Quality of education, training and recreation
- Pupils’ physical and mental health and emotional wellbeing
- Pupils’ social and economic education and contribution to society
- Safeguarding
Charterhouse Square School met all standards across each area of the inspection.
ISI 'Excellent in all areas' INSPECTION REPORT 2023
We are delighted to announce that Charterhouse Square has been judged by the ISI to be ‘excellent in all areas’.
In April 2023, ISI inspectors examined both our compliance and educational standards. In an exceptionally thorough process, Parents, staff, and Upper House children were invited to complete questionnaires, over 70 lessons were observed, and the majority of staff were interviewed in some capacity. In addition, children’s books, teacher’s planning and all school procedures and policies were scrutinised.
Charterhouse Square School has achieved the highest category of ‘excellent’ in both areas ‘quality of pupils’ academic and other achievements’ and ‘quality of pupils’ personal development’. In addition, all eight areas of the compliance inspection were met.
This judgement is a testament to the hard work and dedication of our teaching teams and recognises what a very special place Charterhouse Square is.
ISI 'Excellent in all areas' INSPECTION REPORT 2019
"The school meets the standards in the schedule to the Education (Independent School Standards) Regulations 2014, and relevant requirements of the statutory framework for the Early Years Foundation Stage, and associated requirements.
The curriculum is documented, supported by appropriate plans and schemes of work for the pupils and covers the required breadth of material. The teaching enables pupils to make good progress, encompasses effective behaviour management and is supported by suitable resources. A suitable framework for the assessment of pupils’ performance is in place.
Arrangements are made to safeguard and promote the welfare of pupils by means that pay due regard to current statutory guidance.
Pupils are properly supervised; admission and attendance registers are maintained, as required, and there is a strategic approach to risk assessment."
SIS INSPECTION REPORT 2016
In 2016, Charterhouse Square School was inspected by the School Inspection Service (SIS).
The school met all requirements of the Education (Independent School Standards) Regulations 2014, the Equality Act 2010 and the Early Years Foundation Stage, with Outstanding judgements in all inspection categories.